William de Burgo de MORETON
William de Burgo de was born about 1075 in Mortaigne, France.  He died in Prison, England.

 Isabel FitzRichard de CLARE
Isabel FitzRichard de was born about 1085 in Tunbridge, Kent, England.  Isabel FitzRichard de is no longer alive.

 John de  BURGH
John de  was born about 1100 in Moreton, Normandy.